Dragbar for cultivators



NOV. 25,: 1930. J. GODDARDET AL v 1,783,081

DRAG BAR FOR GULTIVATORS Filed June 1, 1928 John add i a andIoperationQ-as Patented Nov. 25, 1930 z Thisinventionirelatesto improvements in 1g drag: bars for .oultivators, and; the-zobj ects J of 1 theinvention are to provide asir'nply con-w a 1 structed i and .vdurable device of this descrip- 1 '1 tion, particularly fora application tolculti it Another object inventionis toilpr'o 1 band orxbent plate membera24c. iswprovid'ed vide a :yielding cultivator tooth, having in View;anu'improvement inthe constructionwell ,as other incidental- I l i supporting L the auxiliary 'draw-bar*and enablinghtito bezfadjusted to difi'ere'nt: posiadvantages. 1

which will readily appear after the nature ifthe. nv n ive-s i 1$ the same consists xiessentially in providing in combination a main draw-bar a tooth carrying standard pivotally connected thereto, a member. pivotally mounted in the draw-- bar a coil spring anchored in the main drawbar and adjustably connected to SillClHlfil'IP? her, an auxiliary draw-bar adapted to straddle the coil spring andpivotally associated and piv-l member 20 with the standard and adjustably jotally connected to said member.

Referring now to the drawings spending parts in each figure? a Figure 1 is a side elevation of-the draw-'-- I y g standardi 18,;butnis also; pivotally connected to the member 20 between the side plates111t and .12Pof themain draw-bar, v and that the V v auxiliary drawbarnas "straddles"the coil Referringnow more particularly to the v a drawings in which apreferred example of- 1 135 the invention is disclosed, 1O designates the main draw-bar, including two sidewplates; 11 and12, substantially parallel throughout their length except at oneend where these side plates are spread apart as at 13; the oppositeends being tapered toform the ad jacent end portions 14 and 15, bolted to gether in any suitable manner. The side a platesare also intermediately connected by 1 bar equipment embodying my invention.

1x30 Figure 2 is a top plan View ofliig. 1.

Figure 3 is a detail plan view of the amtiliary draw-barn; i

"theQbolt 16 and pivotally'mounted between 1 the rear ends thereof as at 17 is a standard a 9 end of the main draw-barlO between the side Aiip atibnmdqune; 1,;

in which like-characters of reference indicatecorre I l p y a auXiharyndraw-bari .1s notifonly 'operatively e see we: members 11"and -12 iis a channelled member formed with :lugs :21" between Whichds pivotally inounted in: a well known manner (as 'at 22': an auxiliary draw-bar 23, the oppo site tapering end-I of which is pivotally cone liidly connected at 25 to the StdIldaIdJ18nThlS with a plurality oforifices 26 to individually engage with a .retaining bolt 27" pivotally 5 1 1 some-1: SAN Q M N Y li il k ALVER 1 fiiIHS mi e it b 5s nected to a,protrudingbandmember24;'rig- 1 i side plates 28 and i292 tapered "as at a 30.: at none end and bolted t'ogether to engage as iabovs 1mentionedwithithe plateQ2d-and also bentinwardly at; the opposite end as at 31 1 and held apart a suitableiwasheri32 and'securedtogether :thewcross bower CAnchoredttoithe main icl-rawv-bar all-1133,18 onee'nd-rof: the 1 coil springf35 "the other; end being 'connecteduto 3a hooked bolt :36 screw wthreaded ato 1 adjustably engage with the pivotally mounted betweenthe g sidenplates 11 andx12f a From 'theforgoingtit will be-seenvthatthe "connected through the plate '24 T with the for a the s anda d, substantially? below It a .v tirne theybated of, projecting parts i above e u m n of a eat de l b ar c i substantially channel shaped andprovided with spaced lugs on top andPa protruding lug I137therebeneath provided withaneye "orliopen The member 20, as alreadydescribemsis With theimprdved constru tion as above described, an essential obj ect ofthe invention t e me drai be ee ita e t e et ach t oithe u ers m e vit ti e ru tioei ingli-tol ustably engage: with the hooked .iscrewibolt fbri the coilspring; this bblt beso i mt: a

ing provided with a nut, whereby the spring is readily tensioned or slackened.

The plates of theauxiliary draw-bar are retained together similarly to the main drawbar by a bolt member 39 which extends between the plates 28 and 29 midway thereof.

Another feature to note is that the coil spring while fitting at one end within the main draw-bar intermediately extends through the side plates of the auxiliary drawbar and that the travel upwardly of this bar is limited by the strap 24 striking the drag bar sides, while the parts are so arranged that the coil spring always exerts a strong pulling force so that it is not possible for the standard to swing past the point where said force will not be exerted and fail to return to normal operative position and at the same time the standard will always return to normal operating position regardless of whether the standard is working at a depth.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention, within the scope of the claims constructed, without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

What we. claim as our invention is:

1. A seeder or cultivator tooth mechanism comprising a main draw bar, a tooth standard pivotally connected 'to one end of said draw bar, a channel-shaped member formed with spaced and orificed lugs at one extremity and terminating in a solid orificed lug at the other extremity, the said channel-shaped member being pivotally mounted in the opposite end of the main draw bar,'a longitudinally extending coil spring adjustably connected to the solid orificed lug at one extremity of the channel-shaped member and anchored to the main draw bar at the end whereon the shank is mounted, a bent plate member embracing the shank, an auxiliary draw bar pivotally and adjustably connected to said plate, and pivotally connected to the spaced and orificed lugs on the channelshaped member. p d

' 2. The invention according to claim 1 in which the bent plate member for tooth carry- Qing standard is U-shaped to embrace the standard and adapted 'to protrude horizontally, said plate being provided with a plurality of orifices registering individually with orifices in the auxiliary "draw-bar and bolt ineans extending through the orifices to pivotally connect the auxiliary draw-bar to said plate.

end of the said main draw bar, a channelshaped member pivotally mounted on the main draw bar adjacent the open end thereof, the said member being formed with spaced and orificed lugs at the outer extremity thereof or at the extremity adjacent the open end of the main draw bar and a solid orificed lug at the inner extremity thereof, an auxiliary draw bar formed in two spaced and united sections, pivotally connected at one end to the channel-shaped member through the spaced 'means for limiting the travel of the standard,

auxiliary draw bar and spring.

In witness whereof we have hereunto set our hands.

JOHN GODDARD. RAYMOND ARTHUR CALVERT. I

In a cultivator tooth of the character 7 d'escribed,the combination with a main drawbar formed open and spread at one end and taperedat the opposite end, a tooth carrying standard pivotally connected to the tapere 

